Barcelona boss Tata Martino says they'll attack Real Madrid tonight.
Martino is determined to remain faithful to Barca's footballing philosophy.
He told reporters: "When a team has space and forwards like Ronaldo, Bale and Di Maria, you can leave yourself exposed, but we are Barca and we have to keep playing our game and taking risks, as always.
"We need to avoid losing the ball in the dangerous places and being hit on the counter by Madrid."
Having taken charge of Barca during the summer, this will be the first taste of arguably the biggest club match in the world for Martino - just like Madrid counterpart Ancelotti - but the former Paraguay coach is not daunted by the prospect.
"There are big Clasicos all over the world, but it's difficult to find one that generates so many expectations. I'm really looking forward to it and I want the same as all Barcelona fans, to play well and to win," Martino said.
